Cervical Castleman’s disease mimicking lymph node metastasis of esophageal carcinoma

Figure 1 Esophagoscopic view of the tumor. Esophagoscopy reveals a type 1 tumor in the cervical esophagus.

Figure 2 Upper gastrointestinal barium study image. An upper gastrointestinal barium study reveals a 15-mm filling defect at the cervical esophagus.

Figure 3 Preoperative computed tomography image. Contrast-enhanced computed tomography indicates weakly enhanced swollen lymph nodes in the right cervical region.

Figure 4 Surgical specimen of the esophagus. Macroscopically, the type 1 tumor is located in the cervical esophagus, and it measures 30 mm × 15 mm.

Figure 5 Histopathological results of the resected specimen. A: The histopathological diagnosis of the resected esophagus is moderately differentiated squamous cell carcinoma (HE × 200); B: Histological examination of the right-sided neck lymph nodes reveals onionskin arrangement of small lymphocytes (HE × 20); C: Interfollicular diffuse proliferation of plasma cells (HE × 200).